feat: Phase 1 — extract the client (web SPA + desktop) to dtoro/oikos-web

Problem: the hexagonal refactor churns the backend tree for nine more
phases; the UI delivery stack (web/ SPA, cmd/desktop Wails wrapper,
compose/web image) must move to its own repo first so doc/layout
rewrites land once on a backend-only tree.

Change:
- New repo git.hubris.network/dtoro/oikos-web (v0.33.0): web/, desktop/
  (updateURL repointed to oikos-web releases), compose/, own CI (web +
  desktop jobs), own deploy script (CI-green gate, TOCTOU guard,
  version-tagged images, prune-to-3), own webhook receiver on :9798 +
  launchd unit, own compose project publishing the same 8091:80.
- Cutover executed on mac-mini in order: oikos stack's web service
  stopped+removed, oikos-web project brought up on 8091; outer Caddy
  untouched (targets the published port) — serving + Authentik flow +
  /wails 404 quirk verified post-cutover.
- Stripped from oikos: web/, cmd/desktop/, compose/web/, desktop CI
  workflow, ci.yml web job, Makefile ui/desktop/desktop-package/install
  targets, the compose web service, oikos-web from deploy.sh's fallback
  prune list; wails + go-keyring dropped from go.mod, vendor synced.
- README / CONTRIBUTING / AGENTS.md / .agents dev+operations docs now
  point at the new repo; mbse + mascot design docs carry a path note.

Risk: production SPA serving depends on the new pipeline now; rollback
is versioned-image re-up of the old web service from a pre-split
checkout (port 8091). Desktop builds installed before the split still
check dtoro/oikos releases — one manual reinstall, noted in the
oikos-web release notes.

Verification: go vet, make test (race), make generate-check, golangci
(no new findings; baseline down 400→365); post-cutover curls —
localhost:8091 200, /wails/runtime.js 404, outer Caddy 302 Authentik.

web/node_modules/eslint/lib/rules/no-lonely-if.js

@@ -0,0 +1,126 @@
+/**
+ * @fileoverview Rule to disallow if as the only statement in an else block
+ * @author Brandon Mills
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const astUtils = require("./utils/ast-utils");
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+/** @type {import('../types').Rule.RuleModule} */
+module.exports = {
+	meta: {
+		type: "suggestion",
+
+		docs: {
+			description:
+				"Disallow `if` statements as the only statement in `else` blocks",
+			recommended: false,
+			frozen: true,
+			url: "https://eslint.org/docs/latest/rules/no-lonely-if",
+		},
+
+		schema: [],
+		fixable: "code",
+
+		messages: {
+			unexpectedLonelyIf:
+				"Unexpected if as the only statement in an else block.",
+		},
+	},
+
+	create(context) {
+		const sourceCode = context.sourceCode;
+
+		return {
+			IfStatement(node) {
+				const parent = node.parent,
+					grandparent = parent.parent;
+
+				if (
+					parent &&
+					parent.type === "BlockStatement" &&
+					parent.body.length === 1 &&
+					!astUtils.areBracesNecessary(parent, sourceCode) &&
+					grandparent &&
+					grandparent.type === "IfStatement" &&
+					parent === grandparent.alternate
+				) {
+					context.report({
+						node,
+						messageId: "unexpectedLonelyIf",
+						fix(fixer) {
+							const openingElseCurly =
+								sourceCode.getFirstToken(parent);
+							const closingElseCurly =
+								sourceCode.getLastToken(parent);
+							const elseKeyword =
+								sourceCode.getTokenBefore(openingElseCurly);
+							const tokenAfterElseBlock =
+								sourceCode.getTokenAfter(closingElseCurly);
+							const lastIfToken = sourceCode.getLastToken(
+								node.consequent,
+							);
+							const sourceText = sourceCode.getText();
+
+							if (
+								sourceText
+									.slice(
+										openingElseCurly.range[1],
+										node.range[0],
+									)
+									.trim() ||
+								sourceText
+									.slice(
+										node.range[1],
+										closingElseCurly.range[0],
+									)
+									.trim()
+							) {
+								// Don't fix if there are any non-whitespace characters interfering (e.g. comments)
+								return null;
+							}
+
+							if (
+								node.consequent.type !== "BlockStatement" &&
+								lastIfToken.value !== ";" &&
+								tokenAfterElseBlock &&
+								(node.consequent.loc.end.line ===
+									tokenAfterElseBlock.loc.start.line ||
+									/^[([/+`-]/u.test(
+										tokenAfterElseBlock.value,
+									) ||
+									lastIfToken.value === "++" ||
+									lastIfToken.value === "--")
+							) {
+								/*
+								 * If the `if` statement has no block, and is not followed by a semicolon, make sure that fixing
+								 * the issue would not change semantics due to ASI. If this would happen, don't do a fix.
+								 */
+								return null;
+							}
+
+							return fixer.replaceTextRange(
+								[
+									openingElseCurly.range[0],
+									closingElseCurly.range[1],
+								],
+								(elseKeyword.range[1] ===
+								openingElseCurly.range[0]
+									? " "
+									: "") + sourceCode.getText(node),
+							);
+						},
+					});
+				}
+			},
+		};
+	},
+};